Jacketed container



P. H. BRAINARD` JAGKETED CONTAINER Original Filed Dec.

April l 1924.

meme Apr. 1, 1924'.

UNITED STATES PEARL H. BRAINABD, l' IACOHB,

JACIETED CONTAINER.

Application led December 29j, 1921, Serial 11o. 525,788. Renewed January 5, 1924.

To all whom vilt concern.'

Be it known that I, PEARL H. Buurman,

I citizen of the United States, residing, at

sulated containers suitable for the. storing of liquid or solid foods, or of other objects which are to be kept at a temperature difinvention.

ering from that of the surrounding air, its general objects bein those of providing an unusually simp e and inexpensive construction and one which will readily permit the interior of the container to be maintained in a highly sanitary condition. Furthermore, my invention aims to provide a construction which will readily permit the storage receptacle of the container to be made of potteryl in the form of earthenware, porcelain or t e like, so as to secure the advantages of the low thermal conductivity of such a material, combined with the strength and durability of the saine and the ease with which its interior maybe kept in a highly sanitary condition. 'Furtherf more, my invention aims to provide unusually simple, inexpensive and effective means forV securing the outer casing` of a' jacketed container to an inner receptaclejof potteryware in such a manner as .to afford ad support forr the latter and so as to a ord a proper sealing of its juncture .with the same. Still further and more detailed objects will alppear from the following specilication an from the accompanying drawings, in which'- Fig. 1 is a central and vertical section through a jacketed container embodying my Fig. 2 is an enlargement of a part of the mouth portion of the same, showing the arran ement of the supporting connection and o the seal between t e container-proper and the casing of the jacket.

Fig. 3 is a similar section through another embodiment of my invention, namely one in `which the container properhas a Vcylindrical bore and in which its mouth is closed by a gasketed cap after the manner emlployed in fruit jars.l

the embodiment of Figs 1 and 2, the

ess and glazed.

opes upward from the exterior ofl main lcylindrical wall portion 4 integral with the said tapering top portion 3, .so as to avoid the necessit of sealin any joints between the two. owever, t e bottom 5 'of the outer casing is desirably made of a separate piece and preferably is not onl seamed over the lower edge of the side wal 4 into tight clinching relation to the latter, but also soldered or welded to the latter so as to afford an air-tight joint.

In assembling` these main casing portions, the neck 6 of the earthenware or porcelain jar is slipped through the neck o the to 3of the outer casing and this latter ne is then forcibly contracted into the` groove 2, as by s inning the sameinto the said groove.- T ven the inserted portion of the' to 3 is sealed into the groove by a -1lin 7 idf a suitable air-tight cement introduced inside the metal casing and b a corresponding cement portion 8 applic from the 'outside of the latter. This cement is into the `groove so as to'al'ord anvair-tight joint between the casing portion 3 and the neck vof the receptacle when Vthe. cement hardens.

After .this has been done and before the bottom 5 isaixed to the casing, the said assembled rtions are turned upside down `and sutabe ste s are taken for reducing.

the conduction o heat between the receptacle and the outer casing. For this ivplumse, the intervening space is desirably l with a suitable heat-insulating material 9 of thor-- ouglil'yedriedY granulated cork or the like, after which the bottom 5 of the casing attached to the side` wall 4.- and tig tly sealed to the latter. I f desired, air may be exhausted from the said space and from the pores of the cork or other filling also, by attaching a pump through an opening in the bottom 5, which opening is afterwards sealed` as'shown' at `A`10 in Fig. 1. However, I have found in practice that even without producressedv retarding such an interchange of heat. Consequently, I can maintain boiling water uncomfortably hot Within the receptacle for ten or ifteen hours in cold weather, or can lreep ice Water with ice still floating in the same tor a similar period on a hot summer day, and I can likewise keep ice-cream. in proper condition :for the same length ol time.

@Wing to Vthe relatively small surface of the juncture between the metal casing and the inner receptacle, the direct heatv conductivity from one to the other is kept quite low, and the interchange ot heat at this point is desirably further retarded by employing a closure for the receptacle including a stopper 11 which extends belovv the groove 2 and which therefore prevents a conduction of heat along the shortest horizontal path from the neck of the metal top 3 of the outer casing to the bore of the neck ti of the receptacle. If desired, this stopper may be covered by a 'suitable ornamental cap 12, and for most purposes I desirably equip the outer casing with a suitable handle 13 by which the entire appliance may be carried about.

However, I do not Wish to be limited to these or other details of the constructionand arrangement above described, nor to the particular shapes or uses heretofore mentioned, it bein obvious that Wide variations mi ht be ma e without departing from the spirit of my invention or -from claims. For example, Fig. 3 shows an embodiment of the same in which the container 14 has an entirely cylindrical bore, thus facilitating the scoopmg of ice cream or the like from-the same, and whichhas a glass cover 15 fitted with a rubber gasket 16 enof the mouth ofthe con gag'ing the toip er words, any desired form of inner containers may be advantageously employed, such as jars, jugs, carafes andthe like, 1t being obviously unnecessary to illustrate them all. l

I claim as my invention: j

1. A jacketed container comprisinga glazed jar or jug` a ri heralj` ve near its mouth, `and a meta casing havmg its mouth portion sealed into the said groove,

the appended assenso the casing being otherwise `i'ire'ely spaced tacle with respect to the casing in all direcj tions, the said formations supporting the receptacle within the casing in otherwise freely spaced disposition, and means for hermetically sealing the joint between the receptacle and the casing at their said interengaging formations.

3. At jacketed container comprising an` earthenware jar or jug glazed on its interior, and a metal casing having its mouth contracted into embracing relation to the said jar or jug and sealed thereto, the metal casing being otherwise freely spaced from the jar or jug.

il. A jacketed container comprising an earthenvvare jar or jug glazed on its interior, and a metal casing having its mouth contracted into embracing relation to the said jar or jug and sealed thereto, and a heat-insulating filler in the space between the jar or jug and the casing', the mouth ot the casing being interloclred With the jar or jug to hold the latter in fixed relation with respect to the casing independently of any supporting action of theliller.

` 5. A jacketed containercomprising an outer metal casing having a rusto-conical upper end, and an inner receptacle of pottery warehaving adjacent to its mouth a groove corresponding substantially in slope to that of the frusto-conical casing end and entered by the mouth portion of the latter, the said end being sealed into the vsaid groove and the inner receptacle being otherwise spaced from the outer casing, there being means for retardinethe conduction of heat through the space tacle and casing.

6.- A jackete container comprising an tween the said recep outer metal casing having a Afrustoconical upper end, and an inner receptacle of ttery ware having adjacent toits mout a groove entered by the said upper end portion of the casing, the said` end being sealed into the said oove and the inner receptacle being otherwise Vspaced roni'the outer casing, the inner rece taule having moisture im- 'pervious inner an outer surfaces Signedat Macomb, Illinois, Dec. 10, 1921. PEARL H. BRAINARD. 

